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Pipeline

HAZ and PWHT

Post weld heat treatment (PWHT) requirement for Heat Affected Zone (HAZ)

February 20, 2021 engineer

Some of the factors that cause pipe damage that often occur in pipeline system are[…]

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Fe3C diagram for PWHT

Types of carbon steel and its contents

February 13, 2021
pipe specification API 5L grade B

Specification of pipe API 5L grade B, gr X52 gr X42

January 24, 2021
pipe charts schedule

Pipe schedule chart – sch 20, 40, 60, 80 120 wall thickness

January 22, 2021
pressure rating class ASME B16.5

Understanding ASME B16.5 / ANSI class 150, 300, 400, 600, 900, 1500 pressure rating

January 10, 2021

Welding

what is residual stress

Residual stress in welding

February 21, 2021 engineer

What is residual stress? The residual stress is an elastic force that can change the[…]

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HAZ and PWHT

Post weld heat treatment (PWHT) requirement for Heat Affected Zone (HAZ)

February 20, 2021
wps welding procedure specification pdf

The advantages and disadvantages of SMAW

February 14, 2021
SMAW welding machine

SMAW Welding machine : DCEN (Direct Current Electrode Negative) or DCEP (Direct Current Electrode Positive)

February 14, 2021

Welding chemistry and Carbon equivalent

February 13, 2021


Latest Posts

Residual stress in welding

February 21, 2021 engineer welding

What is residual stress? The residual stress is an elastic force that can change the distance between atoms in a[…]

Read more

Post weld heat treatment (PWHT) requirement for Heat Affected Zone (HAZ)

February 20, 2021 engineer piping and pipeline, welding

Some of the factors that cause pipe damage that often occur in pipeline system are corrosion, erosion, welding defects, material[…]

Read more

The advantages and disadvantages of SMAW

February 14, 2021 engineer welding

Shielded Metal Arc Welding (SMAW) is also known as Manual Metal Arc Welding (MMAW) or wrapped electrode welding is a[…]

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SMAW Welding machine : DCEN (Direct Current Electrode Negative) or DCEP (Direct Current Electrode Positive)

February 14, 2021 engineer welding

Advantages of SMAW Welding Machine – AC type Less expensive equipment and maintenance The mass wire and electrode cable can[…]

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Recent Posts

  • Residual stress in welding February 21, 2021
  • Post weld heat treatment (PWHT) requirement for Heat Affected Zone (HAZ) February 20, 2021
  • The advantages and disadvantages of SMAW February 14, 2021
  • SMAW Welding machine : DCEN (Direct Current Electrode Negative) or DCEP (Direct Current Electrode Positive) February 14, 2021
  • Welding chemistry and Carbon equivalent February 13, 2021

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